body {
  font-family: Arial, sans-serif;
  padding: 40px;
  text-align: center;
  background-color: brown;
}

.card {
  background-color: white;
  max-width: 400px;
  padding: 40px;
  margin: 0 auto;
  border-radius: 10px;
  box-shadow: 0 4px 8px gray;
  transition: transform 0.3s, background-color 0.3s ease
}

.card:hover {
  background-color: khaki;
  /* 鼠标悬浮放大 */
  transform: scale(1.1);
}

h1::before {
  content: "🥳 ";
}

h1::after {
  content: " 🥳";
}

.message {
  font-size: 1.2em;
  color: gray;
  margin-bottom: 20px;
}

.card-links {
  margin-top: 20px;
  display: flex;
  justify-content: space-around;
}

.card-links a {
  text-decoration: none;
  font-size: 1em;
  padding: 10px 20px;
  border-radius: 5px;
  color: white;
  background-color: midnightblue;
  transition: background-color 0.3s ease;
}

.card-links a:hover {
  background-color: orangered;
}

.card-links a:active {
  background-color: midnightblue;
}

.card-links a:focus {
  outline: 2px solid yellow;
}

.card-links a:visited {
  color: crimson;
}


section {
  margin: 20px auto;
  max-width: 600px;
  background-color: whitesmoke;
  padding: 20px;
  border-radius: 10px;
  display: none;
}

section:hover{
  transform: skewX(10deg);
}

section:target {
  display: block;
}
